Rumours claimed that Mel was being lined up as a potential replacement on this year's line up, after her successful stint as a guest judge last series.
It was claimed that X Factor bosses had wanted Mel for last year's series, but filming clashed with her stint on the Australian version of the show.
Mel previously admitted she would love to join the UK show and confessed: “I’m not going to lie – I have no idea where the future will take me.
“I quite like not knowing what’s going to happen, where I’m going to be or how I’m going to do it. I
love grabbing different opportunities. I’m very lucky.”
Sources last year claimed Mel was in talks to join the show, with one insider saying: "Mel was a big talking point on X Factor this year  because she is very honest.
“She loves Australia but the UK is her home and she’s not ruling out a return. Spice Girls fans may just be in for a real treat.”
However a spokesperson for the Spice Girls singer confirmed last week that there was no plans for her to join the show.
Meanwhile, X Factor boss Simon is still keen to get Cheryl Cole back.
A source told The Sun: “He’s desperate to get Cheryl back on X Factor UK because it’s lost its way.
“The money on the table would be a fortune — at least double what she got last time. She could have what she wanted.”
Open auditions for the new series will begin soon.